Manufacture of building blocks and similar molded articles



Patented Dec. 11, 1923. I 7i i I H ears 'P- 'rNr FRANK PAUL MCINTYRE, F PHILADELPHIA, PENNSYLVANIA.

MANUFACTURE OF BUILDINGBLOCKS AND SIMILAR MOLDED ARTICLES.

No Drawing. Application filed my 15, 1920. Serial No; 396,479.

To all whom it may concern: the necessary quantity is then added, and the Be it known that I, FRANK PAUL Motub covered until the lime is thoroughly INTYRE, a citizen of the United States, slaked. Paddling or other agitation is residing in Philadelphia, Pennsylvania, again resorted to for a time and, finally,

have invented certain Improvements in the the remaining two parts of screened ash are .3; Manufacture of Building Blocks and Simiadded and the agitation resumed until the lar Molded Articles, of which the following last addition of ash is thoroughly mixed in. is a specification. The mixture is then in the form of an easily My invention relates to the construction handled plastic mass which may be molded of building blocks and similar molded artiinto any desired form. After being molded, to cles, the purpose of my invention being to the article ispermitted to dry for a period construct such articles in a very economical of time and is then placed in a finishing manner. To accomplish this I make use of room wherein it is subjected to the action I what has hitherto been regarded as practiof the heat of steam of very high temperar l cally a waste product namely, cinders, ture for a period of about tenor twelve '65 clinkers and ash of anthracite coal. I have hours. It is then complete and ready'forperfected a method of constructing building use. blocks, hollow tile, bricks, and the like in The reason I reserve two "parts of ash which the referred to refuse is the principal for introduction into the mixtureafter the ingredient. The blocks etc, are consequently lime is slaked is this:- These two parts 70, very cheap and possess the additional adare, before introduction, highlyheated and vantages of being strong, durable, and, on then sprayed into the-mixing vat. They account of their ash construction, highly serve to absorb any surplus moisture which resistant to fire. may be present and insure a product of Briefly stated, my invention consists in uniform consistency. 75'

making building blocks or, in fact, any At times, and in the manufacture of oer-1 similar article which may be molded, of tain articles where increased resistance to a compound consisting of, substantially, wear is desired the final two parts may coneight parts of ash, two parts of pulverized sist of 75% ash .and 25% sand rather than clinkers or cinders, and sufficient hydrate of all ash. i

lime to produce adhesion. Another method by which the admixture One method of mixing the ingredients, of ingredients may. take place consists in and that which I prefer, is as follows: slaking the lime in the mixing vat and, when At the start, I remove all metals and comcompletely slaked, adding the eight partsbustible material from the ashes and then of ash and twoparts of clinkers thereto, screen them through a fine mesh sieve. The then paddling or otherwise agitating the clinkers and cinders are crushed and mass until'properly mixed. M screened through the same or a similar It is, of course, obvious that a completedsieve. I then place in a suitable mixing article could be glazed, enameled or other- 4o 'tub or vat, six parts ofscreened ash and two wise finished or ornamented, if desired. parts of screened clinkers and cinders. I may also, add that I have ascertained (Hereinafter, for convenience, I shall refer that-the most suitable cementing material to to the latter ingredient simply as clinic, be used in connection with my blocks in ers). To this mixture I add a small quanbuilding construction also consists of a mixas tity of lime. What is termed fat flower ture of ash and hydrate of lime but with the of lime is, I have ascertained, the most proportion of lime greater than it is in the suitable form of the latter to use. The mixblock itself. ing vat is then tightly covered and the mix- I claim: Y ture paddled or otherwise agitated until a l. The mode herein described of pro:

50 thorough admixture is effected. Water, in ducing a plastic substance for molding articles, said mode consisting of mixing anthracite ash and lime, adding sufiicient Water to sl-ake the lime and then adding additional ash.

2. The mode herein described of producing a plastie suhstance fer monl ding a r; ticles, said mode censisting in mixing" anthracite ash pulverized clinkers and lime, adding sufficient Water to slake the lime and then adding additional ash. 10

In testimony whereof, I have signed my 1 name to this specification.

RANK PAUL MINTYRE. 

